nervous system

Created by

domi

Cards (18)

Nervous system 
The divisions of the nervous system: central and peripheral (somatic and autonomic)
Outline the role of the nervous system
1. Central nervous system (CNS)
2. Brain
3. Spinal cord
4. Peripheral nervous system
5. Somatic nervous system
6. Autonomic nervous system
7. Sympathetic nervous system
8. Parasympathetic nervous system
Brain 
Provides conscious awareness and is involved in all psychological processes
Brain stem connects the brain and spinal cord and controls involuntary processes, e.g. breathing
Occipital lobe processes visual information
Temporal lobe processes auditory information
Parietal lobe integrates information from the different senses and plays an important role in spatial navigation
Frontal lobe is associated with higher-order functions, including: planning, abstract reasoning and logic
Spinal cord 
Transfers messages to and from the brain and the rest of the body
Responsible for simple reflex actions, e.g. jumping out of your chair if you sit on a drawing pin
Somatic nervous system 
Maintains communication between the central nervous system and the outside world
Consists of sensory receptors which carry information to the spinal cord and brain
Consists of motor pathways which allow the brain to control movement
Autonomic nervous system 
Plays an important role in homeostasis
Consists of motor pathways only
Has two components: Sympathetic nervous system and Parasympathetic nervous system
Sympathetic nervous system 
Involved in responses that prepare the body for fight or flight
Increases heart rate, blood pressure, etc.
Parasympathetic nervous system 
Returns the body to its 'normal' resting state
Brain stem and spinal cord 
Both control involuntary processes
Brain 
Provides conscious awareness and allows for higher-order thinking
Spinal cord 
Allows for simple reflex responses
Sympathetic nervous system 
Responds to external stimuli by preparing the body for fight or flight
Somatic nervous system 
Responds to external stimuli by carrying information from sensory receptors to the spinal cord and brain
Autonomic nervous system 
Consists of two sub-components: Sympathetic and Parasympathetic
Somatic nervous system 
Has sensory and motor pathways
Autonomic nervous system 
Only has motor pathways
Autonomic nervous system 
Controls internal organs and glands
Somatic nervous system 
Controls muscles and movement